About: http://webisa.webdatacommons.org/69796877

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	With a Mohs' hardness rating of 7 to 7.5, tourmaline is a very durable and easy to maintain gemstone perfect for everyday wear.
http://www.w3.org/ns/prov#wasQuotedFrom	zales.com